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Altera_Forum's avatar
Altera_Forum
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18 years ago

USB Blaster driver conflict with other FTDI kit

Hi, I am using a USB blaster (Terasic) and on the same system I need to use two Asix Presto programmers that use the same FTDI device and (apparently) drivers. The Presto devices load up and...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

for windows xp there is a quite simple solution (I don't know for vista).

- In the quartus/drivers/usb-blaster/x32 (or x64) directory, rename the ftdibus.sys to something else (ftdibus1.sys), change all references to ftdibus.sys in the usbblst.inf file to the new file name.

- uninstall the driver (device manager...)

- uninstall all usb-serial adaptors ( although I don't know is this is ncry)

- plug out the usb blaster

- plug in the usb blaster

- reinstall the driver

- reinstall the serial port adaptors

Good luck

Stefaan